Final answer:
The best projection to image the developing permanent maxillary lateral incisors of a 7-year-old child would be the lateral view.
Step-by-step explanation:
The best projection to image the developing permanent maxillary lateral incisors of a 7-year-old child would be the lateral view. This projection allows for a clear visualization of the development and position of the incisors, which are important for proper dental alignment.
By using the lateral view, dentists can assess the eruption and alignment of the permanent maxillary lateral incisors, which typically emerge between 12-15 months of age.
Other projections, such as the right lateral view or the right lateral view of the maxillary bone, can also provide additional information about the surrounding dental structures.